The question of school choice and segregation has been a common recurring theme in education policy over the past 5-10 years (most recently in response to this Associated Press story).
Critics claim that school choice, specifically charter schools and private school vouchers, exacerbate segregation by income and especially race and ethnicity, primarily because more motivated parents with greater resources will exercise choice. Choice supporters, on the other hand, counter-argue that regular public schools are highly segregated due to the lack of choice (i.e., due to school assignment based on residence), and that school choice, which severs that tie, might lead to greater integration.
Given the proliferation of charter schools (and, to a lesser extent, vouchers) over the past 20 years, this is clearly an important debate. Yet the issue of choice and segregation entails three major underlying empirical questions that are sometimes blurred. It may be useful to discuss them briefly.